Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development
Authorized Users Only
2014
Authors
Krsmanović, RadenkaAntić, Željka
Milićević, Bojana R.
Pošarac-Marković, Milica B.
Janaćković, Đorđe
Dramićanin, Miroslav
Brik, Mikhail G.
Steins, Ints
Veljović, Đorđe
Article (Published version)
Metadata
Show full item recordAbstract
Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples.
Keywords:
Grain growth / Electron microscopy / Optical properties / Y2O3 / Spark Plasma SinteringSource:
Ceramics International, 2014, 40, 6, 8853-8862Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-MESTD-Basic Research (BR or ON)-172056)
DOI: 10.1016/j.ceramint.2014.01.108
ISSN: 0272-8842
WoS: 000335201800150
Scopus: 2-s2.0-84897370776
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Krsmanović, Radenka AU - Antić, Željka AU - Milićević, Bojana R. AU - Pošarac-Marković, Milica B. AU - Janaćković, Đorđe AU - Dramićanin, Miroslav AU - Brik, Mikhail G. AU - Steins, Ints AU - Veljović, Đorđe PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2857 AB - Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development EP - 8862 IS - 6 SP - 8853 VL - 40 DO - 10.1016/j.ceramint.2014.01.108 ER -
@article{ author = "Krsmanović, Radenka and Antić, Željka and Milićević, Bojana R. and Pošarac-Marković, Milica B. and Janaćković, Đorđe and Dramićanin, Miroslav and Brik, Mikhail G. and Steins, Ints and Veljović, Đorđe", year = "2014", abstract = "Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development", pages = "8862-8853", number = "6", volume = "40", doi = "10.1016/j.ceramint.2014.01.108" }
Krsmanović, R., Antić, Ž., Milićević, B. R., Pošarac-Marković, M. B., Janaćković, Đ., Dramićanin, M., Brik, M. G., Steins, I.,& Veljović, Đ.. (2014). Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development. in Ceramics International Elsevier Sci Ltd, Oxford., 40(6), 8853-8862. https://doi.org/10.1016/j.ceramint.2014.01.108
Krsmanović R, Antić Ž, Milićević BR, Pošarac-Marković MB, Janaćković Đ, Dramićanin M, Brik MG, Steins I, Veljović Đ. Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development. in Ceramics International. 2014;40(6):8853-8862. doi:10.1016/j.ceramint.2014.01.108 .
Krsmanović, Radenka, Antić, Željka, Milićević, Bojana R., Pošarac-Marković, Milica B., Janaćković, Đorđe, Dramićanin, Miroslav, Brik, Mikhail G., Steins, Ints, Veljović, Đorđe, "Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development" in Ceramics International, 40, no. 6 (2014):8853-8862, https://doi.org/10.1016/j.ceramint.2014.01.108 . .